A pain drug developed by Endo Pharmaceuticals PLC and BioDelivery Sciences met its primary endpoint in a Phase 3 study, the companies said Monday. Shares of BioDelivery Sciences jumped 14% to $13.69 in premarket trading as the companies prepared to meet with the U.S. Food and Drug Administration over a potential new drug application for BEMA buprenorphine.

CASI Pharmaceuticals said that its treatment ENMD-2076 has received orphan drug designation from the U.S. Food and Drug Administration for the treatment of hepatocellular carcinoma. Shares rose 3.2% to $2.04 premarket.

PetSmart said its board has been reviewing potential changes to the pet-supply retailer’s capital structure, including returning capital to shareholders, amid activist pressure. Shares rose 1.1% to $68.00 premarket.

American Apparel Inc. is in talks to raise new financing from hedge fund Standard General that would allow the company to pay off a loan that came due after it ousted founder Dov Charney, according to The Wall Street Journal, which cited people familiar with the matter.

Japan has approved Bristol-Myers Squibb Co.'s all-oral Daklinza and Sunvepra dual regimen to treat hepatitis C, the company said Monday.

Expedia Inc. on Monday called certain rumors reported in Chinese media about the company’s majority ownership of Chinese online travel services provider eLong Inc. (LONG) inaccurate. The Bellevue, Wash., online travel site said it remains a long-term investor in eLong and supports eLong’s drive to become the leading Chinese travel site.

Appalachia gas driller Rice Energy Inc. has agreed to purchase about 22,000 acres of land and 12 developed Marcellus shale wells in western Pennsylvania in a $336 million deal, the company said Monday. Rice said it would buy the land and wells in Greene County, Penn., from Chesapeake Appalachia LLC through a combination of cash and credit.

Sensata Technologies Holding NV said Monday that it reached an agreement to buy DeltaTech Controls in a deal valued at $190 million, as the sensors and controls supplier looks to broaden its offerings.

Warren Resources Inc. said Monday it has agreed to acquire essentially all of the Marcellus assets of Citrus Energy Corp. and two working interest owners for $352.5 million.